With AVS4Mac M4V Converter Plus for Windows, you can convert your entire iTunes movie library including purchased and rental DRM M4V to commom popular video and audio formats supported by any other non-Apple devices.

With NoteBurner M4V Converter for Mac, you can convert your entire iTunes movie library including purchased DRM M4V to MP4 and MOV, which you can use Any Video Converter for Mac to convert to other video formats.